6.6.3 - Example of Signal Handling
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Practice Questions
Test your understanding with targeted questions
What is a signal in the context of Linux?
💡 Hint: Think about how a computer alerts a program.
What does the SIGINT signal typically indicate?
💡 Hint: Consider user actions that stop running programs.
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What is the purpose of the signal() function?
💡 Hint: Think about how we inform the program about what to do when a signal arises.
True or False: A signal handler can be defined using the sigaction() function.
💡 Hint: Consider both functions that relate to signals.
2 more questions available
Challenge Problems
Push your limits with advanced challenges
Design a simple C program that registers a signal handler for SIGTERM. The program should perform a cleanup operation (e.g., closing files) and then terminate gracefully when SIGTERM is received.
💡 Hint: Think about what resources need to be cleaned before exiting.
Explain how user-defined signal handlers can create race conditions in concurrent applications. Provide an example where this might occur.
💡 Hint: Consider situations where multiple threads may be waiting on signals or shared locks.
Get performance evaluation
Reference links
Supplementary resources to enhance your learning experience.